foebes



(No Model.)

J. A. FORBES.

PORTABLE STEAM GENERATOR.

lVii'zwss as NITED STATES PATENT OFFICE.

JOHN A. EoEEEs, oE DOVER, DELAWARE, ASSIGNOR or ONE-HALF TO JAMES H.WILSON, OF sAME PLACE.

PORTABLE STEAM -G ENERATO R.

SPECIFICATION forming part of Letters Patent No. 303,566, dated August12,1884.

Application filed March 11, 1884. (No model.) I

heating purposes; second, that can be easily repaired; third, that ismade of materials which can be had in almost every town and village, sothat any necessary repairs can be done at home 5 fourth, that is of suchshape and so constructed as to be placed in any heatingstove, so thatany family having one of these generators can, by placing it in a stoveand-by adding conducting-pipes and radiators, heat their dwellings bysteam at the minimum cost for fuel; fifth, that can be used for heatingrailroad-cars by steam with the smallest pos sible amount of fire,thereby doing away with most of the danger arising from the stoves andheaters at present used for heating cars, when, in cases of accidents,the same are overturned. In such cases the waterin my generator,whenoverturned and broken, will extinguish the fire, and as a few pounds ofsteam-pressure would be amply sufficient for heating purposes, therecould be little or no danger from the escaping steam. Therefore,with mygenerator for heatingcars one of the greatest dangers from collision orother railroad accidents would be removed, namely, fire.

My generator can be readily set in masonry,

as well as attached to an ordinary heatingstove.

In the drawings, Figure l is a perspective view of the generator,showing the heat-fines running through the main boiler and thewatertubcs 011 the outside with their connections, also the gages, &e.Fig. 2 is aview of the stove-cap and the smoke-pipe, showing the boltsfor sup porti u g the generator when placed in a stove. Fig. 3 is a viewof the generator as it appears in a stove. Fig. 4 is a view of the cap Ifor supporting the generator.

a parlor-stove with the generator attached. Fig. 5 is a view of anordinary sheet-iron stove with the generator attached. a

In the drawings, similar letters of reference designate correspondingparts in all the figures.

A is the main boiler or reservoir. B are the water-tubes connected atthe top and bottom of the main boiler A, as shown in Fig. 1. G are theheat-fines running through the boiler A. D is the safety-valve.conducting the steam. F is the water-column. G is the glass water-gage.H are the bolts in I is the cap for the stove. J is the smoke-pipe. K isthe feed-pipe or pump-connection. I is the check-valve. M is the drip tothe watergage. N are the try-cocks on the water-col.- umn F. O is theblow-off pipe. P is the steam-gage,-

E is the pipe for XVhen the generator is placed in a stove or set inmasonry, no part of it comes in contact with the outer wall of the stoveor of the brickwork butin either case the generator will be supported bythe bolts in the cap, thus allowing the heat to pass freely around thesmall water-tubes, as well as through the heat tubes or fiues inthe mainboiler.

My generator is constructed out of regular sizes of wrought steam-pipe,and is very simple in construction, very cheaply made, and easilyrepaired and kept clean. Being made in different sizes, it can readilybe attached to any ordinary heatingstove by selecting the proper sizefor the stove in which it is to be placed. It can also be satisfactorilyset in masonry. By the use of this generator a great saving in fuel canbe had for the amount of steam generated, and this is largely due to thefact thatall the heat possible is utilized, as above shown. My inventioncan be satisfactorily employed in all ordinary heating purposes,especially for heating houses and cars; and in cases where steam isemployed for culinary purposes my invention will be found valuable. Itwill also supattached to the sides of said cylinder by means of nipplesand ells, and fire-tubes extending through the interior of the saidcylinder, sub stantially as and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand inthe presence of two witnesses.

JOHN A. FORBES. Witnesses:

' R. R. KENNEY,

JOHN S. J ESTER.

